Cop holder



meten May 4ze '1936 f UNITED STATES ERNEST A. DE WOLF,- OF GBANSTON,RHODE ISLAND, ASSIGNOR T UNIVERSAL FIND-A PATENT OFFICE ING COMPANY, OFBOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS COP VHOLDERApplication led April 11,

This invention relates to improvements in cop-holders for supportingcops, cones or packages of yarn, thread and other strand material todeliver the same for various pur- 5 poses in the textile art. i

Azprincipal object of the invent1on 1s to provide a cop-holderv for 'useon creels or other supply stands for holding the cop, cone or package toadapt the strand material to draw off therefrom over its end andprovided with instrumentalities forI preventing the strand from catchingon the opposite' vend o the package to impede its delivery. j

' A .particular object of the invention is to provide means in thenature of a guard adapted to bear against' theend of the cone or packagein close contact therewith'to prevent the strand fromslipping down overthe edge of the package and catching across the end thereof. v

A further object of the invention is to proy vide for the automaticoperation of the contact means or guard to adapt it to adjust itself tothe end of the package at the peripheral ed e thereof and to constantlymaintain it bearing thereagainst throughoutthe unwinding of the materialfrom the full package down to its tube or support.

Further objects of the improvements are 3o set forth inthe followingspecification which describes a preferred form of construction yof theinventionV as illustratedl by the accompanying drawings. In thedrawings: f

Fig. 1 is a side view of the improved copholder showing it with aconical cop or package applied thereto;

Fig. 2 is a detailed view of the cop-holder with the cone and its tubeshown thereon in section, and also lillustrating the contact de- 40 viceor guard in section;

and guard taken on line 3-3 of Fig. 2; and

Fig. 4 is an end view of the holder showing the guard or contact devicewith a portion of its'pad broken away.

The present improved cop-holder in its referred form comprises meansadapted to e inserted into the cop-tube or carrier to support the cop orpackage ixedly thereon and a guard or contact device sldablelongitudinal-- Fig. 3 is a sectional view of the cop-holderA 1928.Serial I0. 269,165.

ly-of the axis of the holder to adapt it to adjust itself against theend of the package at the outer peripheral edge thereof and to paratuswith which it is used. The ball-end 4 of the hub 3 is 4adapted to fitWithin the cavity of a concavo-convex socket 5 forming a part i of orattached to an armr orbracket on the creel or other apparatus. Asaucer-shaped washer 6 is seated against the rear of the bearing 5 and abolt 7 extends through an enlarged axial opening 8 in the hub 3 andbearing 5 andalso through a hole in the washer with a nut 9 on its endfor clamping the parts together. By releasing the nut 9 the cop-holder 2may be adjusted at its balland socket joint to aline its axis with thetension-device or any point to which the yarn is to draw or deliver.

In the form of construction of the device as. herein shown thecop-holder 2 is adapted for use with tapered or conical yarn packagesand this purpose the portion which enters the cop-tube is made tapering.Conveniently, it may comprise a plurality of ribs or blades 10projecting radially from theend hub 3 and e tending forwardly ininclined relation to a apt their peripheral edges to ft within theinterior of the conical cop-tube c von which the cop or cone C is wound.As herein shown the cop-holder 2 has three ribs or blades 10 see Fig. 4,to provide for a threepoint bearing within the interior of the cop-tubec lso that the package may be properlycentered thereon and" held inplace by the -frictional` engagement of the ribs with the interior ofthe paper or fiber tube. The ribs 10 are joined to-l gether at theirforward ends by means 'of a central hub -11, with the whole forming askeleton structure 'which is lightinY weight yet rigid and strong forthe purpose intended.

J As beforel stated; the present improvement relates particularly tomeans for vengaging the base end ofthe cone or package at the'peripheral edge thereof to guard against the strand of yarn or threadsliding off over this end of the package and catching thereon to impedeor prevent free delivery of the material. In the referred form ofconstruction as herein illustrated the protector or guard 4is embodiedin a concavo-convex plate or flange4 v -or secured by stitches 17passing through' holes in the plate.

The plate or flange 15-is carried on a spiderlikemember 20 supportedfrom .a sliding bearing extendin axially of the holder 2. As aconvenient orm of construction I provide a rod or stud 21 having a head22 at one end and threaded at its opposite end to screw through an axialhole in the hub lat the forward end ofv the holder 2. A nut 23 Y isscrewed onto the end of the rod 21 to lock it in place. The support orspider 20 for the guard flange or late 15 is constructed with a centralhub 25 ored axially toreceive the rod 21 to adapt the Ahub to slidethereon.

Three equidistantly spaced arms 26 extend radially from the hub 25 inalternate relation i with the ribs or blades 10 on the holder 2.

formed with crooks or reverse bends terminating in lugs orbearings 27against the front lof which the plate is secured. The flange or plate 15may be fastened to the arms 26 by rivets or split pins 28 insertedthrough holes in the plate and in the lugs 27 with their ends bent over'as shown in Fig. 2.

It has been stated that the spider-member 20 is slidable axially of thecop-holder 2 on the stud 21, and resilient means are provided for urgingit forwardly toward the apex end of the holder. Such means may comprisea helical spring 29 coiled around the hub 25 of the spider and extendedaxially thereof with its opposite end bearing against the head 22 of thestud 21. y

Having now described a preferred form of constrution and arrangement ofthe im-v proved device in detail its method of o ration will next be exlained. Fig. 3 il us- 'trates the cop-holder with its parts innormalrelation before the packa e 1s placed there-v on, the ard flange 15 ingpressed for- ,ward un er the actlon of its spring 29. The

cone or package C is placed on the holder 2 by sliding its tube c overthe ribs or blades 10 and crowding it back thereon to causetheperipheral edges of the ribs vto engge fricfV tionally with the interiorof the tu Usue concaved face of the `outer edge.

axis in inclined relation to the horizontal, as illustrated in Figs. land 2, so that there will be no tendency for the Weight of the packageto cause it to slide off. In other cases the holder may be set with itsapex end inclineddownwardly', and with this arrangement a suitablespring detent or grippingdevice, not herein shown, is employed to securethe cop-tube in place.

As the cone-tube c is forced backonto the cop-holder 2 the base end ofthe cone C will come into contact with the felt pad 16 to force theguardv flange 15 back with its spidermember or support 20 sliding on therod 21.

`This causes the spring 29 to be compressed,

as shown in Fig. 2, whereby it will maintain the guard plate or ila-ngepressed firmly in contact with the base of the cone at the outerperipheral edge thereof. It will be noted ally, thecopholder` 2.v isarranged Yits that lthe plate or iiange 15 is dished or concaved to suchan extent that the pad 16 will bear with its greatest pressure againstthe outer edge of the cone, although the resiliency of the pad causes itto conform to the base of the cone throughout a considerable portionthereof. In winding packages of the present type and also other forms ofyarn cops the ends sometimes assume a more or less convex contour andthe shape varies considerably with different varieties of textilematerial. That is to say, the base of the package may bulge to a greateror less extent in accordance with the character of the maA terial beingwound, it being well known that silk, rayon and glazed yarnsl have agreater tendency to bulge at the ends'of the packages than is the casewith soft cotton yarns. With the present im roved device wide variations1n the form o vthe base of the package are provlded for by the dishedshape of the guard plate or flange 15 which is so designed as toaccommodate itself thereto-and to invarlably contact with the outer edgeof the base. As the yarn winds off from the package or cone C and thebulge at the base of the packageis reduced the guard plateis-automatically adjusted in p osition to follow the contour of the endof the package so as to be malntained constantly pressed against itsThat is to say, the spring 29 functlons not onl to maintainthe guardplate bearing on t e base at the start of the unwlnding operation, butit also operates to automatlcally slide -the plate to maintain its addedface in contact with the rim of the izo ase when the material has beenunwound llas) 10 therefore be delivered at a high rate of speed with amore uniform tension of deliveryand without waste from broken ends. Thedevice is particularly adapted for use on creels in which a large numberof packages orv employed for delivering yarn, thread or the like to awrapper or balling machine and its use greatly increases the speed ofthe process while eliminating broken ends and frequent piecing up.lVhile I have herein described and' illustrated the device in apreferred embodiment it is to be understood that various modificationsmay be made in the construction and arrangement of its parts withoutdeparting from the spirit or scope of the invention. Therefore, withoutlimiting myself in this respect, I claim:

1. In a device of the type specified, the

` combination of a holder provided with a plurality of radiallyprojecting ribs adapted for insertion into the interior of a cop-tube tohold the cop in place, a member slidable axially of the holder andprovided with radial arms, a spring to slide said member, and an fannular flange carried on the arms of said member to adapt it to bepressed into contact with'the end of the cop under the action of thespring.

2. In a device of the type specified, the combination of a holdercomprising a plurality of radially disposed longitudinally extendingribs adapted for insertion into the interior of the cop to hold it inplace, a rod. extending axially of the ribs, a member slidable on saidro'd and provided with radial arms, a spring for sliding the member, andan annular flange carried on the arms of said member and adapted to bepressed against the end of the cop under the action of the spring.

`3. In a device of the type specified, the combination of a holderprovided with a plurality of radially disposed ribs joined together attheir ends, a rod extending axially of the holder, a spider-memberslidable on the rod and provided with arms arranged in alternaterelation -With respect to the ribs of the holder, a4 spring for slidingthe spidermember on the rod, and annular flange carried at the outer endof the arms of the spidermember, and a pad of resilient material on theface of said flange adapted to be pressed into contact with the end ofthe cop under the action of the spring. Y

4. In a deviceY of the type specified, the

combination of a hollow holder adapted to receive a cop, cone or packageof strand material, a rod extending axially of the holder, a memberhaving a hub slidable on the rod and provided with rearwardly extendingarms, an annular flange carried at the end of the arms, and a spring forsliding the member on the rod to press the flange against the end of thecop or package supported on the holder.

5. In a device of the type specified, the combination of a skeletonholder adapted to support a cop, cone or package, a rod extendingaxially within the holder, a spider-mem'- ber having a hub slidable onthe rod and provided with arms extending rearwardly from the hub andradially outward beyond the sides of the holder, an annular flangesecured .to the ends ofthe arms surrounding the holder, and a spring forsliding the spidermember on the rod to press the flange against the endof the cop or package supported on the holder.

6. In a device of the type specified, the combination of a cop-holderconstructed with opposite hubs having radial ribs extendinglongitudinally therebetween, a rod extending from one of the hubsaxially withinA the holder, a spider-member having a-hub slidableon therod and provided with arms extending radially between the ribs of theholder, an annular flange supported from the arms of the spider-memberand a spring for sliding the spider-member to press the flange againstthe en'd of the cop or package held on the holder.

7. In a device of the type specified, the combination of a cop-holdercomprising a hollow ribbed framework, a rod extending axially withintheframework, a hub slidable on the rod and provided with radial armsextending outwardly beyond the framework, an annular flange supportedfrom said arms, an abutment on the rod, and a spring encircling the rodbetween the abutment and the hub to adapt it to slide the latter topress the flange against the end of the package.

' In testimony whereof I hereunto aflix my signature. ERNEST A. DE WOLF.

